Wrench

ABSTRACT

This invention is about a device used for installing a fixing nut on the targeted objects-multiple fixing screw axes protruded from the hub or for separating them from the targeted object or the fixing screw axis in order to fix vehicle&#39;s tire wheel to the hub when installing or separating a fixing nut from targeted objects. Based on the idle operation of the operating gear, not based on the visual examination, the invention immediately recognizes the complete installation of a fixing nut. Likewise, this invention is to provide a wrench that maximizes user convenience.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention is related to a wrench. To give more details, wheninstalling or separating a fixing nut on or from the targeted objects,the invention could be used to install a fixing nut on multiple screwaxes protruded from the hub in order to fix the tire wheel to the hub orto separate a fixing nut from the fixed screw axis. This invention ispertaining to a wrench of maximizing convenience by immediatelyrecognizing the complete installation of a fixing nut based on the idleoperation status of the operating gear, not based on the visualexamination.

2. Background of the Related Art

The device is used to tighten or loosen a fixing nut or to fasten orloosen the nut fixed to the tire wheel hub of a vehicle. In general, inthis case, a wrench is used. The applicant has been already granted a USpatent U.S. Pat. No. 6,742,417(hereafter ‘existing technology’) for adevice of fastening or loosening a fixing nut with less energy in aprompt manner designed for female and elderly users.

The existing technology is as follows:

While the connecting part and the main socket are assembled, the mainsocket is assembled with the target nut to be loosened or tightened, andauxiliary socket is assembled with other nut.

Afterwards, when rotating the handle to make the operation axis spin,due to the strengthened spinning power of the transmission meansincluding first transmission and second transmission, rotation isconducted to easily loosen or tighten the target nut.

Meanwhile, the torque spring installed to support the resilience betweenthe gripping tube's inside wall and rod is compressed only to a certainlevel until the target nut is completely fastened.

To the contrary, the operating axis does not spin any more after thetarget nut is completely fastened. In this situation, if a force biggerthan the repulsive power of the torque spring is applied to the handlefor spinning, the torque spring is compressed to the maximum level, andthe gripping tube's inside wall and the outside surface of the rodbecome the closest.

This work process requires the user to check the level of the torquespring compression visually through the opening at the end of thegripping tube in order to tighten the target nut. Therefore, users willexperience lots of inconvenience in tightening the target nut.

In addition, when the target nut is completely fastened, the operatingaxis does not spin any more. If the torque spring is compressed to themaximum level by applying a force bigger than the repulsive power of thetorque spring to the handle, it often happens that the end of thegripping tube does not have a consistent direction, and it is headeddownward sometimes. In this case, the user finds it difficult to make avisual check.

SUMMARY OF THE INVENTION

The invention is related to a wrench. To give more details, wheninstalling or separating a fixing nut on or from the targeted objects,the invention could be used to install a fixing nut on multiple screwaxes protruded from the hub in order to fix the tire wheel to the hub orto separate a fixing nut from the fixed screw axis. This invention ispertaining to a wrench of maximizing convenience by immediatelyrecognizing the complete installation of a fixing nut based on the idleoperation status of the operating gear, not based on the visualexamination.

To fulfill the objective as stated above, Embodiment 1 of the inventionconsists of the cylinder-shaped case that has an opening and rotationguide holes on the side whose diameter is smaller than the opening; thecap that can be attached to or removed from the case opening area andwas created by the rotary guide hole at the center. One side that movesforward or backward around the cap's rotary guide hole is located insidethe cap opening. The other side is located outside of the case above.The other side has an operating handle of a certain length. Flange 1protruded from one side has a certain length, and the initial input axishaving prominence and depression created on the flange 1 surface aroundthe circumference and the gear part are created. The flange 2 has acertain thickness and it is protruded outside. Flange 2 has prominenceand depression around circumference to dovetail with the initial inputaxis. An operating gear is rotating inside the case and inserted intothe rotary guide hole on the supporting wall. It is protruded andconnected to the socket that rotates the fixing nut forward or backwardassembled with the targeted object. There is the final output axis thatrotates the socket. There is a cap that supports the assembly of theinitial input axis and operating gear from the resilience perspective,and there is an elastic means installed on the initial input axislocated between the cap and the flange 1. The respective slant ofprominence and depression parts of the initial input axis and theoperating gear is affected by the condition where the operating gear isrotated by the elastic means when the initial input axis is rotated tothe fixing nut direction. If rotation does not take place on thetargeted object in the direction of the fixed nut installation, theprominence and depression part of the operating gear and the prominenceand depression part of the initial input axis contact each other andstart moving. Then a slant is created to satisfy the condition that theinitial input axis conducts idle operation against the operating gearabove. When rotation does not occur in the installation direction of thefixed nut above on the targeted object, and the initial input axis isrotated in the reverse direction to separate the fixing nut from thetargeted object, the prominence and depression part of the operatinggear and the prominence and depression part of the initial input axisshould be kept combined. To this end, the initial input axis shouldenable the forward and backward rotation within the rotary guide hole ofthe cap above. There is a means of stopping or releasing the initialinput axis used to control or release the forward/backward movement.

According to Embodiment of the invention, the installation of the fixingnut could be immediately recognized based on the idle rotation status ofthe operating gear, instead of the visual examination when installingthe fixing nut. This maximizes user convenience and can be applicable toboth the type installed on the fixing screw axis clockwise and the typeinstalled counterclockwise. Therefore, the installation and separationof a fixing nut could be easy and simple.

In the meantime, the wrench under Embodiment has a cylinder-shaped casethat has an opening on one side and a rotary guide hole smaller than theopening on the other side. There is a cap that can be attached to orremoved from the opening of the case, and that has a rotary guide holeat the center. It inserted into the above cap's guide hole so thatforward and backward movement and rotation are possible. Therefore, oneside is located within the opening of the cap above, and the other sideis outside the case. On the other side, an operating handle of a certainlength is installed. On one side, the initial input axis with prominenceand depression is created. Around the outer circumference, the gear partis created. To make the prominence and depression of the initial inputaxis combined with the mutual prominence and depression, the prominenceand depression is created. It is inserted into the operating gear thatrotates inside the case and the rotary guide on the supporting wall tomake it protruded from the other side of the case. In addition, it isassembled with the socket that rotates the fixing nut on the targetedobjects forward and backward according to the rotary direction. There isa final output axis that rotates the socket above. To support thecombination of prominence and depression between the initial input axisand the operating gear, the elastic means installed on the circumferenceof the initial axis inside the cap should be included. The slant of theprominence and depression parts that form the initial input axis andoperating gear is affected by the condition where the operating gear isrotated by the elastic power of the elastic means when the initial inputaxis is rotated in the direction of fixed nut installation. In casewhere it does not rotate in the direction of installing the fixed nut onthe targeted object, the compression power of the elastic means make theprominence and depression of the above operating gear contact theprominence and depression of the initial axis. In this case the initialinput axis makes idle operation against the above operating gear. In thecase where rotation cannot take place in the direction of installing theabove fixed nut on the targeted object, if the initial input axisrotates backward in the direction of separating the fixed nut from thetargeted object, a slant is created to make the operating gear rotatedue to the resilience of the elastic means.

According to Embodiment 2 of the invention, instead of visualexamination, the status of idle rotation of the operation gear becomesan indicator of the completion of the fixing nut installation wheninstalling the fixing nut. This maximizes user convenience. In addition,this can be selectively applied to the type that rotates clockwiseagainst the fixing nut axis or the type that rotates counter-clockwiseto make the installation and separation of a fixing nut much easier.

According to the invention, the wrench has following effects.

First, when installing or detaching a fixing nut, this device functionsbased on the idling condition not the idling time of the operating gear.Accordingly, it could maximize the convenience of the user by promptlydetecting if the install process is completed. For example, when fixinga tire wheel, this device can be used to install or detach nuts in screwaxes that are projected from the hub.

Second, this device makes you easy to install or detach the nuts in thescrew axis by setting either clockwise or counterclockwise rotation.

Third, this device makes you easy to install or detach the nuts in screwaxis regardless of clockwise or counterclockwise rotation.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the presentinvention will be apparent from the following detailed description ofthe preferred embodiments of the invention in conjunction with theaccompanying drawings, in which:

FIG. 1 is a disjointing exploded view that applies and illustrates thefirst enforcement example of torque increasing means of composition ofwrench by invention that see.

FIG. 2 is a disjointing exploded view that disjoints and illustratesfirst operation axis and movable gear drawn and elasticity means that isillustrated in FIG. 1.

FIG. 3 and FIG. 4 is a cross-sectional view that illustratesconjointness and operation state of wrench that is illustrated in FIG.1.

FIG. 5 and FIG. 6 is a cross-sectional view that illustrates operationstate of first operation axis the movement binding/release means that isillustrated to FIG. 1 and different view conjointness.

FIG. 7 through FIG. 9 is a part extension cross-sectional view thatdisplays operation relation of convex part between first operation axisthe movement binding/release means and elasticity means and firstoperation axis and movable gear that is illustrated FIG. 3.

FIG. 10 is a disjointing exploded view that extracts and illustratesunion structure of the first rotation plate and center gear and unionstructure of the second rotation plates and final output axis amongdisjointing exploded view that is illustrated FIG. 1.

FIG. 11 is a disjointing exploded view that applies and illustratessecond enforcement example of torque increasing means of composition ofwrench by the first enforcement example of invention that see.

FIG. 12 is a cross-sectional view that illustrates conjointness andoperation state of wrench that is illustrated to FIG. 11.

FIG. 13 is a disjointing exploded view that disjoints and illustrateselasticity means and first operation axis and movable gear by the secondenforcements example of invention that see

FIG. 14 through FIG. 16 is a part extension cross-sectional view thatdisplays operation relation of convex part between elasticity means tobe composition that is illustrated to FIG. 13 and first operation axisand movable gear.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

A detailed structure of the present invention will now be described withreference to the accompanying drawings. In the following description,same drawing reference numerals are used for the same elements even indifferent drawings.

The first operation of this invention demonstrates the convenience andthe usability of the device. In installing or detaching a fixing nut,the device functions based on the idling condition not the idling timeof the operating gear so that it could maximize the convenience of theuser by promptly detecting when the install process is finished. Forexample, when fixing a tire wheel, this device can be used to install ordetach nuts in screw axes that are projected from the hub. In addition,this invention makes you easy to install or detach the nuts in screwaxis regardless of clockwise or counterclockwise rotation.

As illustrated in FIGS. 1 and 10, the wrench roughly consists of sevencomponents: a cylindrical case (10), a cap (20), a primary input axis(60), an operating gear (63), an output axis (45), an elastic shift(70), and a static constraint/enabling shift of the primary axis.

One side of the case (12) has an opening and the other side has abearing wall (14) with a revolving guide perforation (13), which issmaller than the opening (12).

The cap (20) connected to the opening (12) of the case (10) isdetachable and the revolving guide perforation (21) pass through thecenter. The cap (20) is attached to or detached from the inner surfaceof the opening (12) as a screw type.

The primary input axis (60) is inserted to the revolving guideperforation to move back and forth and rotate. One end of the axis isplaced at the opening (12) of the cap (20). As shown in picture 9, inthe case of rotating the initial insert axis (60) to the oppositedirection from the fixed bolt when the fixed bolt does not move anymorebecause it is touching the surface of the wheels of a tire, a stoprestriction (90) is used to keep the initial insert axis (60) moving inthe rotating route (21) of the cap (20) to keep the movable gear (63)'sjoint (65) connected to the initial inserting axis (60)'s joint (65).The other end of the axis is placed outside the case to allow a maneuvergrip to install.

This jagged surface (62) forms zigzag pattern in a gentle angle ofinclination. For example, the angle of inclination between the surfacesthat forms the jagged surface (62) can be 120 degrees (an obtuse angle)so that the angle between the first flanged eyelet (61) and the inclinedplane becomes 30 degrees, however, the angle is not necessarilyrestricted to this criterion.

The operating gear (63) is formed at outer cylinder surface. The secondexhibition of the increased rotating power using this device is shown,as in picture 11: an internal gear part (11) regularly seen along theinner surface of the case (10); a circular board (75) in front, with themovable gear (63) penetrating its center while spinning, a circularboard at the back (76), an inner case (78) with several exposing holes(77 a) on its rims (77) that will hold the two circular boards together;a set of gears (79) which goes through the said circular board in front(75), gradually combine with the automatic gears (63), and half of whichwill join the inner gear part (11) as it is installed based on the axispin (79 a) inside the inner case (78) so that some of its parts will beexposed through the exposure openings (77 a), and a ring-type gear (28),that encompasses the rest of the other gear (79) at the very end of thefinal axis that is opposite to the circular board (76). The gear (63)revolves inside the case (10).

Above jagged surface (65) is connected to the jagged surface (62) of theprimary input axis and forms zigzag pattern in a gentle angle ofinclination. For example, the angle of inclination between the surfacesthat forms the jagged surface (65) can be 120 degrees (an obtuse angle)so that the angle between the first flanged eyelet (61) and the inclinedplane becomes 30 degrees, however, the angle is not necessarilyrestricted to this criterion.

The elastic shift (70) is placed at the primary input axis (60) betweenthe cap (20) and the first flanged eyelet (61) to bear the connectionbetween the input axis (60) and the operating gear (63) elastically.

The elastic shift (70) has perforations (71 a) (72 a), which the primaryinput axis (60) passes through to make contact with each other. Itslides on the input axis (60) inside the cap (20), tapers as the centerhas a disparity, and consists of a pair of elasticized disc springs (71)(72).

Here, if the external force is not applied toward the center of the discsprings (71) (72), the center having a disparity provide a restitutionforce and transfers the torque of the primary input axis (60) to theoperating gear (63). If the external force, which is generated when thedevice does not rotate by contacting the nuts with the wheel surface, isapplied to the center, it provides the elasticity to idle the operatinggear (63) even when the primary input axis (60) is rotating.

Each jagged surface (62) (65) that composes the primary input axis (60)and the operating gear (63) are beveled to fulfill two conditions: 1) tomake the operating gear (63) rotate by the restitution force of theelastic shift, which is generated when the primary input axis (60) isrotating toward the target; 2) to make the primary input axis (60) idleby a compression force of the elastic shift (70), which is generatedwhen the jagged surface (66) of the operating gear (63) contacts thejagged surface (62) of the primary input axis (60).

As illustrated in FIGS. 2-4, 7-9, each jagged surface (62) (65) thatcomposes the primary input axis (60) and the operating gear (63) formszigzag pattern in a gentle angle of inclination. This angle can bemodified as far as it fulfills the condition 1) and 2).

Since the inclination angle of the jagged surface is devised to fulfillthe condition 1) and 2), the static constraint/enabling shift of theprimary axis (90) should be fully equipped to keep the jagged surfaces(65) (62) of the operating gear (63) and the primary input axis (60)tight and allows the primary input axis (60) to rotate in eitherdirection inside the revolving guide perforation (21) of the cap (20),in case the primary input axis (60) backlashes after the installation ofthe nut is completed.

The initial input axis halt binding/release device (90) of thisinvention consists of: a penetration hole (91), made to go through thecap (20) orthogonally from the axis of the initial input axis (60) tocreate a connection passage (91 a) that is connected to the rotationguidance hole (21) interior; Lever supplements (93), with a concave part(92) that was created to be inserted within the penetration hole (91) sothat it could be rotated, leaving both sides of the cap (20) toprotrude, and so that rotation guidance hole (21) would not beinterfered by the part corresponding to the connection hole (91 a); andfinally, the semicircle shaped halt binding groove (94) that is createdalong the rotation guidance hole (21) corresponding to the interior ofthe initial input axis (60) and also the linearly contacting theexterior of the lever supplements (93) protruded inside the rotationguidance hole (21) of the cap (20) through the connection passage (91a).

Also, the initial input axis halt binding/release device (90) is createdto satisfy: condition 3, which specifies that when the lever supplements(93) is inserted within the penetration hole (91) and rotating, theexterior of the lever supplements (93) protruding into the cap (20)'srotation guidance hole (21) through the connection passage (91 a) andlinearly contact the interior of the halt binding groove (94); condition4, which specifies that when the initial input axis (60) is rotating,the exterior of the lever supplements (93) protruding into the cap(20)'s rotation guidance hole (21) through the connection passage (91a), linearly contacting it; and finally condition 5, which specifiesthat when the initial input axis (60) moves front and back in therotation guidance hole (21) of the cap (20), parts of the initial inputaxis (60) should be created so that it goes through the interior of themouth (92).

Here, the unexplained sign (95) is the handle that is created at the endof the lever supplements (93) so that the user may rotated it, and theunexplained sign 96 is the fixation screw that is installed in the otherend of the lever supplements (93) protruding from the cap (20)'srotation guidance hole (21).

Above mentioned handle part (95) and fixation screw (96) will preventthe length movement of the lever supplements (93), when inserted intothe rotation guidance hole (21).

However, in this invention, the rotational power of the above mentionedoperational gear (63) is delivered to the above mentioned final outputaxis (45). This rotational power increase device (40) can have two typesof practical application examples.

The rotational power increase device (4) of the first practicalapplication example, as shown in FIG. 1, is commonly combined with theinternal gear box (11) created in the length way of the interior of thecase (10); 1^(st) rotation plate (41) that is placed within the case(10), allowing it to be rotational; and the many 1^(st) Double-Planetarygears (43) that is placed so that it could rotate according to the axispin (42) which is installed in front of the 1^(st) rotation plate sothat it can be combined with the above mentioned internal gear box (11)along with commonly combining with the operational gear (63); main gear(44) created in the back center of the 1^(st) rotation plate (41); the2^(nd) rotation plate (41′), that is separated from the 1^(st) rotationplate (41) created in the foot area of the final output axis (45)corresponding to the main gear (44) within the interior of the case(10), so that it could rotate; and finally many 2^(nd) Double-Planetarygears (43′) that is placed so that it could rotate according to the axispin (42′) which is installed in front of the 2^(nd) rotation plate (41′)so that it can be combined with the above mentioned internal gear box(11);

Within the structure of the above mentioned rotational power increase,the axis pin (42) that allows the rotation of the Double-Planetary gear(43) in relation to the 1^(st) rotation plate (41), is a protrusion fromthe 1^(st) rotation plate (41), and likewise, the axis pin (42′) thatallows the rotation of the 2^(nd) Double-Planetary gear (43′) inrelation to the 2^(nd) rotation plate (41′), is also a protrusion fromthe 2^(nd) rotation plate (41′), but was not specified on the plan.

Also, within structure of the above mentioned rotational power increasedevice (40), the axis pin (42) that allows the rotation of the 1^(st)Double-Planetary gear (43) in relation to the 1^(st) rotation plate (41)is created to protrude from the 1^(st) Double-Planetary gear (43), andthe axis pin (42′) that allows the rotation of the 2^(nd)Double-Planetary gear (43′) in relation to the 2^(nd) rotation plate(41′) can be created to protrude from the 2nd Double-Planetary gear(43′) (refer to FIG. 1).

Here, the unexplained sign 46 is the combining part that is created onthe final output axis (45) so that it could be combined with variousgrooves (51) that is made on the end of the socket (50).

So, according to the above mentioned invention's first practicalapplication example, the rotation power increase device (40)'s mechanismworks as follows.

First, when the operational gear (63) moves either clockwise, oranti-clockwise, the many 1^(st) Double-Planetary gear (43) combined tothis operational gear (63) will rotate and revolve around it.

As mentioned above, as the 1^(st) Double-Planetary gear (43) rotates,the 1^(st) rotation plate (41) rotates in the same direction as therevolution of the many 1^(st) Double-Planetary gear (43).

Through such procedure, it will be shifted (decreased) according to thegear ratio of the operational gear (63) and the 1^(st) Double-Planetarygear (43), so the 1^(st) rotation plate (41) will rotate slower than theinitial input axis (60), but the rotation power will be greater than theinitial input axis (60).

As above, when the 1^(st) rotation plate rotates, the main gearinstalled on it will rotate in the same direction as the 1^(st) rotationplate.

When the main gear (44) rotates as above, the many 2^(nd)Double-Planetary gear (43′), combined to the main gear (44) will rotateand revolve around the main gear (44).

So, when the 2^(nd) Double-Planetary gear (43′) rotates and revolves,the 2^(nd) rotation plate (41′) will rotate in the same direction as themain 2^(nd) Double-Planetary gear (43′).

At this instance, the 2^(nd) rotation plate (41′) will be shifted(decreased) according to the gear ratio of the main gear (44) and the2^(nd) Double-Planetary gear (43′), so it may rotate slower than the1^(st) rotation plate, but the rotational power will be greater.

So finally, the final output axis (45), fixed onto the 2^(nd) rotationplate (43′), will rotate in the same direction as the 2^(nd) rotationplate (43′), and through the socket (50), will rotate the fixed nut.

According to the rotational power increase device (40), the firstpractical application example, the final output axis (45) will rotatewith a greater rotational power than the initial input axis (60), andthus rotate the fixed nut with less power.

Along so, the rotation direction of the fixed nut will changed accordingto the rotation direction of the operational gear (63).

Also, as shown on FIG. 10, the above rotational power increase device(40), a pentagonal penetration hole (41 a) in the middle of the 1^(st)rotation plate (41), as an example, or a polygonal hole (41 a) in themain gear (44) can be created to be combined using a combination part(44 a) with a pentagonal exterior.

Also, as shown on FIG. 10, the above rotational power increase device(40), a pentagonal penetration hole (41′a) in the middle of the 2^(nd)rotation plate (41′), as an example, a combination part (45 a) can becreated with a pentagonal exterior so that the combination part in thefinal output axis (45) can be joined with the 2^(nd) rotation plate(41′).

Meanwhile, as the FIG. 12 illustrates, by going through the piercinghole (60 b) formed on the end part of the first operation axis (60), theoperation handle (80A) is installed with the first operation axis (60)that is orthogonal to the operation handle (80A). And on the end part ofthe operation handle (80A), the jointing part that is to be connectedwith the socket (50) is formed. And then, on the end part of theoperation handle (80A), the assistance operation handle (85) that isorthogonal to the operation handle (80A) is connected with the operationhandle (80A) through piercing connection, in order to be able to bemanually connected and disconnected.

The reason to connect the socket (50) with the said operation handle(80A) is that one can still use the operation handle (80A), thoughtemporarily, in case the invented wrench breaks down during the processof tightening or loosening the fixation nut using socket (50). And also,one can still use the operation handle (80A) before tightening thefixation nut by wrench completely or after loosening the completelytightened fixation nut and then connecting socket (50′) with thefixation nut. And the main purpose of the operation handle (80A) is forrotating the first operation axis (60) that is a part of the wrench.Here, as the FIG. 1 and FIG. 12 illustrate, and also as explainedearlier, the jointing part (80 a) can be structurally changed in orderto be inserted into the concaved square shape groove (60 a) on anotherend part of the first operation axis (60), without connecting theoperation handle with the first operation axis (60).

In other words, one can choose to use or not to use the operation handle(80) in accordance with the situation.

Meanwhile, as the FIG. 1 and FIG. 3 illustrate the first enforcementexample of the invention, firstly make the supporting stand (15) thathas a certain length and orthogonal to the outer surface of case (10),and then make the long hole (151) on the end part of this supportingstand (15).

Next, fix the fixation socket (30) by the cap nut (32) after insertingthe volt (31) that is projected from the separate fixing socket (30)into this long hole (151).

Here, the fixation socket (30) is not used for the same purpose as thesaid socket (50). Hence, the fixation nut to connect the socket (50)with the fixed clamp screw axis and to disconnect the socket (50) fromthe fixed clamp screw axis is inserted into the socket (50), while onefixation nut among many projected fixation nuts that are fixedlyconnected to the fixed clamp screw axis is inserted into the fixationsocket (30).

And, the reason to form the long hole (151) is to control the distancebetween the fixation socket (30) and the socket (50), because the spacebetween fixation nuts of car varies from one car to another.

Herewith, one can easily connect to the fixed clamp screw axis thefixation nut that is inserted into the socket (50) using the specialsupporting stand (15) and the fixing socket (30). And also one caneasily disconnect the fixation nut from the fixed clamp screw axis.

The action of the first enforcement example of the invention will beexplained below.

Here, the action of the first enforcement example of the invention willbe explained by using the first enforcement example of torque increasingmeans.

If one rotates the lever part (93) in order to connect the concave part(92) of the lever part (93) with the passageway (91 a), the firstoperation axis (60) can move forward or backward in the rotation guidepiercing hole (21) of the cap (20). This is because the first operationaxis (60) is designed to pass through the inside of the precedingconcave part (92).

At the time, because the central part of the pair of disk spring (71)(72) that compose the elasticity means (70) is separated, the powertransfer route that receives the torque of the first operation axis (60)and then can rotate the movable gear (63) will be formulated while theconvex part (62) of the first operation axis (60) and the convex part(65) of the operation gear (63) are mutually concave-convex connected.

If a user rotates the operation handle (80) (80A) in this situation, thefirst operation axis (60) is rotated. And because at this moment, theconvex part (62) of the first operation axis (60) and the convex part(65) of the movable gear (63) are mutually concave-convex connected, thetorque of this first operation axis (60) can rotate the operation gear(63).

That is to say that until the socket (50) is firmly fixed to an object,the convex part (62) of the first operation axis (60) and the convexpart (65) of the movable gear (63) can continuously maintain the stateof being mutually concave-convex connected using the elasticity means(70) without relying on a big force.(Refer to the FIG. 7)

Therefore, a big force is not required, until the socket (50) is firmlyfixed to an object.

And, if the fixation nut in this invention is perfectly fixed to theobject, and the fixation nut is no longer rotated because it iscontacted on the wheel surface of a tire, one should rotate theoperation handle (80) (80A) more compulsorily than the maximumcompression force of the pair of disk spring (71) (72) that composes theelasticity means (70), which results in releasing the convex part (62)of the first operation axis (60) and the convex part (65) of the movablegear (63) from the state of being mutually concave-convex connected,which will induce these parts to mutually contact each other and bemoved and finally the first operation axis (60) to be turning idlyagainst the movable gear (refer to the FIG. 7 and the FIG. 8).

Therefore, by immediately recognizing the empty turning of the firstoperation axis (60) against the movable gear (63) one can realize thatthe fixation nut is perfectly fixed to an object.

And, when the first operation axis (60) is turning idly against themovable gear (63), the convex part (62) of the first output axis (60) incontact with the convex part (65) of the movable gear (63) makes dullnoise, and one can realize by recognizing this noise that the fixationnut is perfectly fixed to an object.

That is to say that as the FIG. 6 illustrates, if by rotating the leverpart (93), one part of the lever part (93) is projected into the insideof the turning guiding piercing hole (21) of the cap (20) through thepassageway (91 a), the line-contacted with the inside of the movementbinding groove (94) of the first operation axis (60), the firstoperation axis (60) cannot move forward and backward inside the rotationguiding piercing hole (21).

After all, the mutual concave-convex connectedness between the convexpart (62) of the first operation axis (60) and the convex part (65) ofthe movable gear (63) can be maintained forcibly. And if one rotates thefirst operation axis (60), then the inside of the movement bindinggroove (94) is in contact with the surface of the lever part (93) thatis projected into the inside of the turning guiding piercing hole (21)of the cap (20) through the passageway (91 a). Therefore, the movablegear (63) can be rotated naturally.

Also, the number of teeth of the internal gear box (11) is greater thanthe frontal gear (48), and the final output axis (45) is rotated sloweraccording to the difference in the number of teeth of the frontal gear(48) and the internal gear box (11).

So, the frontal gear (48) and the internal gear (11) has the same insidediameter, but as they have different number of teeth, with the internalgear box (11) as the standard, when the many double-planetary gears (79)rotates and revolves around the internal gear box (11) once, the frontalgear (48) will rotate according to the difference in the number of teethof the two gears.

As mentioned above, the 2^(nd) part of the rotational power increasedevice is as follows.

When the inside diameter of the internal gear box (11) and the frontalgear (48) is the same, and the number of teeth of the internal gear box(11) is 54, and the frontal gear (48), 50, as one tooth of the internalgear box (11) is 6.66 degrees, as the many double-planetary gears (79)rotate around the operational gear (63) once (360 degrees), the frontalgear (48) will rotate with a 4 teeth difference (26.64 degrees).

So, the final output axis (45), connected to the frontal gear (48) willrotate in the same direction as the frontal gear (48), and will rotatethe fixed nut through the socket (50)

So, according to the 2^(nd) practical application example of thisinvention, the final output axis (45) can rotate at a greater rotationalpower, so that it could rotate the fixed nut with less power.

Along so, the rotation direction of the fixed nut is deviated by therotation direction of the operational gear (63).

Until now, the structure and function of the wrench according to the1^(st) practical application of this invention was explained.

The wrench, according to the 2^(nd) practical application example ofthis invention expressed on FIG. 13, is similar to the above explained1^(st) practical application example, but the difference is that theeach protrusion (62A) (65A) that compose the initial input axis (60) andoperational gear (63) is created to satisfy: condition 6 (refer to FIG.15), that allows the operational gear (63) to rotate according to theelastic power of the elastic material when the initial input axis (60)is rotated to install the nut; condition 7, which specifies that whenthe fixed nut installation cannot be continued as it is complete, due tothe compression of the elastic device (70), the protrusion (65A) of theoperational gear (63) and the protrusion (62A) of the initial input axis(60) moves with mutual contact, and allows the initial input axis (60)to null rotate; and finally condition 8, which specifies that when theabove mentioned situation happens, when the initial input axis (60) isrotated the other way to uninstall the fixed nut, the elastic device(70)'s elasticity will rotate the operational gear (63).

However, the protrusion (62A) on the initial input axis (60) isrepeatedly created to continuously form on gently slanted, vertical andhorizontal plane, and the protrusion (65A) on the operational gear (63)is created to be combined with the protrusion (62A) on the initial inputaxis (60) correspondingly.

Here, the degree of the above mentioned slant can be created to form a30 degree with either the exterior of the 1^(st) flange (61) or the2^(nd) flange (64). By doing this, the slant and the vertical plan willbe of 60 degrees, and the horizontal, 150 degrees. But, the abovementioned slant does not have to be 30 degrees with the 1^(st) flange(61) or the 2^(nd) flange (64), and can vary.

Here, in condition 7, as shown in FIG. 15, when the protrusion (65A) inthe operational gear (63) and the protrusion (62A) in the initial inputaxis (60) is mutually conjoined, and then, as shown in FIG. 14, the twoprotrusions are moved in mutually conjoined status, and then moves, asshown in FIG. 16, in maximum mutual conjoint, and finally, as shown inFIG. 15, the protrusion (65A) of the operational gear (63) and theprotrusion (62A) on the initial input axis (60) returns to its originalmutually conjoined status.

So, the process of FIGS. 15->14->16->15 is repeated, and in FIG. 14, theelastic device (70) is compressed to allow the initial input axis (60)to back off in the direction expressed as the arrow, within the rotationguidance hole (21) in the cap (20), and furthermore, as shown in FIG.16, the initial input axis (60) moves back to its maximum in thedirection shown, and then as shown in FIG. 15, the elastic device (70)returns to original, which allows the initial input axis (60) to backoff towards the operational gear (63) within the rotation guidance hole(21) of the cap (20).

However, in condition 8, as shown in FIG. 15, if the initial input axisis rotated in the fashion shown by an arrow B, with the protrusion (65A)in the operational gear (63) and the protrusion (62A) of the initialinput axis (60) conjoined, as the compression of the above mentionedelastic device (70) and the protrusion (62A) on the initial input axis(60) and the protrusion (65A) in the operational gear (63)'s verticalplane forms a forced obstacle structure, it allows the above mentionedoperational gear (63) to rotate, and as a result, when the abovementioned fixed nut cannot proceed due to the tire, the above mentionednut can be rotated in the way to remove it from the object.

Each protrusion (62A) (65A) that make up the initial input axis (60) andoperational gear (63) can be varied in its slant as shown in FIGS. 13,14, 15 and 16, within the boundaries of satisfying conditions 1, 2 and3.

Here, in the 2^(nd) practical application example of this invention,each protrusion (62A)(65A) that make up the initial input axis (60) andoperational gear (63), is of different appearance than in the 1^(st)practical application example, as a condition 8, which specifies thatwhen the installing of the above mentioned fixed nut cannot be proceededdue to the contact on the tire surface, when the initial input axis (60)is rotated the other way to uninstall the fixed nut, the elastic device(70)'s elasticity will rotate the operational gear (63), wasadditionally required to be satisfied.

So, the 2^(nd) practical application example, compared to the 1^(st), isabout a wrench that installs and removes fixed nuts in cases such asinstalling the wheels of a vehicle which require the installation ofmany fixed nuts. And, when in operation, the completion status isrecognized not by sight but by null rotation status, which allow amaximized convenience.

But, the 2^(nd) practical application example can be applied either tothe clock-wise or the anticlockwise type in relation to the object, orthe fixed nut axis, and can execute the installation and removal of thefixed nut conveniently.

Here, in order to apply either to the clock-wise or the anticlockwisetype in relation to the object, or the fixed nut axis, a oppositewrench, that has opposite protrusions (62A) (65A) shown on FIGS. 13, 14,15 and 16 needs to be created.

Also, the 2^(nd) practical application example, when the above mentionedfixed nut is removed from the object when the nut cannot be rotated anymore, as each protrusion (62A) (65A) of the initial input axis (60) andoperational gear (63) is formed as shown in FIGS. 13, 14, 15 and 16,unlike in the 1^(st) practical application example, where you need aninitial input axis halt binding/releasing device (90), you can simplychange the slant of the slant plane that compose the protrusions (62A)(65)A), so that the fixed nut can be easily removed from the object.

On the other hand, this invention can be used in a device that installswheels and removes wheels, which require the installation and removal offixed nuts, along with devices that require the screwing and unscrewingof the fixed bolt.

1. A socket wrench comprising: a cylindrical case with an open end and asupport wall with a rotating route, of which is a diameter smaller thanthat of the open end; a detachable cap on the open end, that has aperforation for the rotating route in the center; initial input axisthat is inserted and partly positioned on the inside of the opening ofthe said cap and the other on the outer surface of it so that it can bemoved back and forth in the rotating route of the that has the firstflange part said cap. On the outer part will be a handle to adjust thelength of the equipment, the outer surface of the inner part a bulgy andhollow part; on the outside the circular area is the gear part where amovable gear that rotates inside the said cap, with a cylindrical ruggedpart on the surface of the second flange that will allow the joiningwith the rugged part of the said initial input axis; a final rotatingaxis connected to the socket which is inserted to the rotating route sothat projecting to the outer surface of the end, it counter-rotates thescrews or bolts fixated to an object according to the direction ofrotation; including elasticity methods installed on the surface of theinitial input axis between said cap and the first flange part toelastically support the joining of the said axis and the movable gears;the angle of each incline comprising the rugged part of the said initialinput axis and the movable gear is a condition in which the movablegears would rotate due to the force from the rotation towards thedirection tightening the fixed screw or volt to object due to the forcefrom the rotation towards the direction tightening the fixed screw orvolt to object, when said fixation nut or fixing volt is no longerrotated for direction that is established to said object, to make convexpart of said movable gear and convex part of said first operation axiskeep the two joints mutually in case reverse said first operation axisfor direction that separate said fixation nut or fixing volt from saidobject, said first operation axis does so that moving forward andbackward is possible in the rotation guiding piercing hole of said cap,wrench that do by characteristic that equip a binding/release a firstoperation axis the movement binding/release means.
 2. The socket wrenchof claim 1, further comprised of: said elasticity means an edge that isconterminous together with that piercing hole that first operation axispierces in central part is formed, sliding in as much as possible thesaid operation axis in interior of that cap, to separate central partbecoming tapered, wrench that do by characteristic that consist of diskspring of pair as long as become by elasticity quality of the material.3. The socket wrench of claim 1, further comprised of: the rotationalpower of the said movable gears is delivered through the an operationaxis the movement binding/release means, Some section make chimney withthe rotation guiding piercing hole interior of said cap, the piercinghole for axis of said first operation axis and orthogonal direction sothat the passageway through piercing said cap may be formed; insertionestablished both end part is projected to outside of said cap as canrotate in said the piercing hole, with the lever part that the concavepart is formed lest should be interfered with inside circular area ofsaid the rotation guiding piercing hole on part that is corresponded tosaid the passageway; over the whole to outside circular area of saidfirst operation axis that is corresponded to inside circular area ofsaid the rotation guiding piercing hole concave formed and outwardsurface and line of the lever part that is projected into the rotationguiding piercing hole interior of said cap through said the passagewaytogether including the movement binding groove of contacted half-circleshape; when is rotated when said the lever part is inserted in said thepiercing hole, outward surface of the lever part that is projected intoturning the guiding piercing hole interior of said cap through said thepassageway on inside of said the movement binding groove line-contacted,on outer surface of the lever part that said binding groove inside isprojected into the rotation guiding piercing hole interior of said capthrough said the passageway when said first operation axis is rotatedbeing line-contacted, said first operation axis in the rotation guidingpiercing hole of said cap when is moved from forward and backward, someoutward section of first operation axis that do pass interior of saidthe concave part by characteristic.
 4. The socket wrench of claim 1,further comprised of: torque of said movable gear is passed to saidfinal output axis by torque increasing means; said torque increasingmeans with some section formed interior gear part for length directionto inside circular area of said case; with arranged the first rotationplate as can rotate on interior of said case; with toothed wheel that iscombined commonly with said movable gear together said interior gearpart and toothed wheel with established many the first planet gear ascan rotate axis pin by intermediary for cylinder direction in front partof said the first rotation plate to be combined; with formed center gearto be projected in rear part center of said the first rotation plate; isarranged as can rotate on interior of said case, being formed finally onend of output axis which is corresponded to said center gear, said thefirst rotation plate separated with the second rotation plates; wrenchthat do by characteristic said interior gear part and toothed wheel thatinclude established many the second planet gears as can rotate axis pinby intermediary for cylinder direction in front part of said the secondrotation plates so that may be combined and consist together withtoothed wheel that is combined commonly with said center gear.
 5. Thesocket wrench of claim 1, further comprised of: torque of said movablegear is passed to said final output axis by torque increasing means;said torque step increasing means with some section formed interior gearpart for length direction to inside circular area of said case; withfront surface circular plate that said movable gear passes as can rotatein central part, with back side circular plate separated from said frontsurface circular plate, with interior case that has many gear exposurehole and has border together with said front circular plate and backcircular plate connect these to all being established totally in theedge part; With that is combined commonly gradually with movable gearthat pierce said front surface circular plate together gear part halfsaid interior gear part and toothed wheel being established as canrotate axis pin by intermediary for cylinder direction on interior ofsaid interior case to be combined, with many planet gear that gear partthrough said gear exposure hole is projected; as the arranged can rotateon interior of said case on end of said final output axis that iscorresponded to said back circular plate to wrap remainder part of saidmany planet gear tool being formed this and toothed wheel includingoutput gear of ring shape that advance guard gear is formed to insidecircular area to be combined, the number of teeth that of said advanceguard gear is formed to be less than said interior gear part gear teethnumber, Wrench that said last output axis has characteristic marked bythat is rotated being decelerated together as said advance guard gearand interior gear part teeth number difference.
 6. The socket wrench ofclaim 1, further comprised of: said operation handle pierces another endpart of said first operation axis, wrench that has this characteristicthat is established as is orthogonal with said first operation axis. 7.The socket wrench of claim 6, further comprised of: said socket andbanded together jointing part of one end part of said operation handleare formed, wrench that assistant operation handle is marked by thischaracteristic that is established as adding and removing at will ispossible as is orthogonal with operation handle on another end.
 8. Asocket wrench comprising: Open end part is formed one, support wall thatanother side has the rotation guiding piercing hole of smaller diameterthan open end part of one with case on cylindrical to all; adding andremoving at will is possible to open end part of said case, in centralpart the rotation guiding piercing hole with piercing formed cap; theguiding piercing hole of said cap can move from forward and backwardbeing inserted as can rotate in open end part of said cap situate,another end is situated on outside of said case, operation handle offixed length is established on another end, with first operation axisthat have convex part in one end part; gear part of outside circulararea is formed, with convex part of said first operation axis mutuallyconvex part is formed to be combined, with movable gear that is rotatedin interior of said case; to rotate the rotation guiding piercing holeof said support wall, is delivered torque of said movable gear togetherwith that is inserted and is projected to another outside of said case,to object according to the turning direction screw combined fixation nutor fixing volt can be rotated from forward and backward with finaloutput axis being combined to socket that rotate said socket; includingelasticity means that is established on said first operation axisoutside border of said cap interior to support the joints between saidfirst operation axis and movable gear elastically, slant angle of slopethat accomplish each convex part that accomplish said first operationaxis and movable gear, with condition that do so that said movable gearmay be rotated by elastic repulsion of said elasticity means when saidfixation nut or fixing volt rotates said first operation axis fordirection that is established to said object; by elastic compression ofsaid elasticity means when the fixation nut or fixing volt is no longerrotated for direction that is established to said object convex part ofsaid movable gear and convex part of said first operation axis mutuallycontact with condition that about said movable gear being moved firstoperation axis does empty turning to be made; wrench that do bycharacteristic that is formed slantingly to satisfy condition that do sothat said movable gear may be rotated by elastic repulsion of saidelasticity means when reverse said first operation axis for directionthat separate said fixation nut or fixing volt from said object whensaid fixation nut or fixing volt is no longer rotated for direction thatis established to said object.
 9. The socket wrench of claim 8, furthercomprised of: said elasticity means; edge part is contacted togetherwith that piercing hole that first operation axis pierces in centralpart is formed, slide moving as is possible in said operation axis ininterior of said cap, central part being tapered to separate, wrenchthat do by characteristic that consist of disk spring of pair as long asbecome by elasticity quality of the material.
 10. The socket wrench ofclaim 8, further comprised of: torque of said movable gear is passed tosaid final output axis by torque increasing means; said torqueincreasing means With some section formed interior gear part for lengthdirection to inside circular area of said case; with arranged the firstrotation plate as can rotate on interior of said case; with toothedwheel that is combined commonly with said movable gear together saidinterior gear part and toothed wheel with established many the firstplanet gear as can rotate axis pin by intermediary for cylinderdirection in front part of said the first rotation plate to be combined;with formed center gear to be projected in rear department center ofsaid the first rotation plate; is arranged as can rotate on interior ofsaid case, being formed on end of final output axis which iscorresponded to said center gear, said the first rotation plateseparated with the second rotation plates; wrench that do bycharacteristic said interior gear part and toothed wheel that includeestablished many the second planet gears as can rotate axis pin byintermediary for cylinder direction in front part of said the secondrotation plates so that may be combined and consist together withtoothed wheel that is combined commonly with said center gear.
 11. Thesocket wrench of claim 8, further comprised of: torque of the movablegear is passed to said final output axis by increasing pressure on thetorque means; with some section formed interior gear part for lengthdirection to inside circular area of said case; with front circularplate that said movable gear passes as can rotate in central part, fromsaid frontal circular plate separated with back circular plate, withinterior case that has several gear exposure hole formed border parttogether with that connect these to all being established with the saidfront circular plate and back circular plate; with toothed wheel that iscombined commonly with movable gear that pierce said front circularplate together gear part half said interior gear part and toothed wheelbeing established as can rotate axis pin by intermediary for cylinderdirection on interior of said interior case to be combined, with manyplanet gear that gear part through said gear exposure hole is projected;is arranged as can rotate on interior of said case, on end of said lastoutput axis which is corresponded to said back circular plate to protectremainder part of said many planet gear tool including advance guardgear of this and toothed wheel combined ring shape being formed; gearteeth number of said advance guard gear is formed to be less than saidinterior gear part gear teeth number; Wrench which decelerates theoutput gear by rotation of the final output axis as the advance guardgear and interior gear part with difference of teeth number.
 12. Thesocket wrench of claim 8, further comprised of: said operation handlepierces another end of said first operation axis, Wrench that do bycharacteristic that is established as is orthogonal with said firstoperation axis.
 13. The socket wrench of claim 12, further comprised of:said socket and banded together jointing part of one part of saidoperation handle are formed, and the wrench of the assistant operationhandle is marked by the characteristic of fixing or removing bolts atwill whenever as is orthogonal with operation handle on the other end.